We’re looking for a Senior C# Developer who is ready to take the next step towards leadership.
You’ll be part of a close knit, collaborative squad within our telecoms division, building and evolving modern software platforms using the latest .NET technologies within a microservices architecture.
This role is ideal for a technically strong engineer who wants to progress into a Team Lead position over time. You’ll work closely with the current Team Lead, shadowing them and gradually taking on greater responsibility across delivery, technical decision making, and people leadership.
You’ll have real influence on how systems are designed and delivered, while continuing to write high quality, production ready code.
What you’ll be doing…
- Designing and developing new features within a microservices architecture
- Building, integrating, and consuming services using external APIs
- Maintaining and enhancing existing applications
- Creating and managing internal NuGet packages
- Writing robust unit and integration tests
- Participating in and leading code reviews
- Diagnosing, troubleshooting, and resolving technical issues
- Shadowing the current C# Team Lead to develop leadership capability
- Splitting, estimating, and assigning development tasks
- Contributing to architectural discussions and technical direction
What we’re looking for…
- Minimum 4 years of commercial C#/.NET development experience
- Experience with NET 6+ Web APIs
- Solid understanding of microservices
- Experience working in Agile development environments
- Good knowledge of relational databases (SQL Server or similar)
- Comfortable using ORMs such as Entity Framework and/or Dapper
- Front end experience with Angular or another popular framework
- A proactive mindset with an interest in mentoring, ownership, and leadership
What you can expect from us…
You’ll be contributing to a critical platform that supports telecoms solutions used by businesses globally.
A standout workspace
Based in our purpose‑built Radius Campus HQ in Crewe, you’ll enjoy:
- Modern, collaborative workspaces
- Onsite gym, café, and barista station
- And yes… Doctor Who themed features throughout the office!
Your impact on Radius will be rewarded with the opportunity to progress your career in many directions.
The development of our people has always been a priority for us. We have established a culture of continuous learning and knowledge sharing which means our colleagues are constantly exposed to new experiences and ways of working.
Every individual, from entry‑level to the senior team, has their own personal development plans with clear routes for progression and regular reviews.
Rewards and benefits
In addition to a competitive salary, you’ll have access to a reward and benefits package which includes:
- Pension
- Life assurance
- Electric Vehicle scheme
- Employee assistance programme
- Wellness and healthcare assistance via ‘Help@Hand’ by Unum
- ‘Cycle to work’ scheme
- Free breakfast daily in the office
- Free gym access at Radius Campus HQ
Diversity, Equality & Inclusion at Radius
Our global DEI networks champion LGBTQ+ inclusion, cultural diversity, women’s empowerment and mental health, neurodiversity and disability support.
We also offer:
- Global Female Health Policy & Female Health Champions
- Pregnancy Loss and Fertility Treatment Policies
- Endometriosis Friendly Employer (UK)
- Mental Health First Aiders
- Disability Confident Committed Employer (Level 1)
- Race at Work Charter signatory
- Proud sponsor of Crewe Pride (4 years running) and Cheshire Pride Awards Corporate Supporter 2025
- Community network driving charity and volunteering initiatives, with 8 consecutive years of participation in the UK Challenge.
- Give as you earn scheme (payroll giving) and match funding
Radius is an equal opportunities employer. We are committed to welcome people regardless of age, disability, gender identity, race, faith or belief, sexual orientation or socioeconomic background.
We are committed to ensuring an inclusive and accessible recruitment process for all candidates. If you require any adjustments or accommodations at any stage of the process, please let us know, and we will do our best to support you.
We reserve the right to close a vacancy before the closing date in the event of an overwhelming response or a change in business priorities.
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